Method, apparatus, and system for measuring aggregated carrier cell

ABSTRACT

A method for measuring an aggregated carrier cell includes the following content. A user equipment receives measurement configuration information of an aggregated carrier cell from a serving base station, where the measurement configuration information includes signal estimation value information and a corresponding measurement period thereof; the user equipment obtains a measurement period of a non-active component carrier according to a signal estimation value of the non-active component carrier in the aggregated carrier cell and the measurement configuration information; and the user equipment measures the non-active component carrier according to the measurement period. With the method of the present invention, the user equipment can measure different component carriers in an aggregated carrier cell in different periods.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.13/565,052, filed on Aug. 2, 2012, which is a continuation ofInternational Application No. PCT/CN2011/070682, filed on Jan. 27, 2011,which claims priority to Chinese Patent Application No. 201010107381.5,filed on Feb. 3, 2010, both of which are hereby incorporated byreference in their entireties.

FIELD OF THE INVENTION

The present invention relates to the field of mobile communications, andin particular, to a technical solution of measuring an aggregatedcarrier cell.

BACKGROUND OF THE INVENTION

In a wireless cellular communication system, a user equipment (UserEquipment, UE) in the active (Active) state determines a serving cellaccording to signal power of a cell, while a UE in the idle (Idle) statedetermines a camping cell according to the signal power of the cell.Therefore, the UE needs to measure signals of the serving cell or thecamping cell and signals of neighboring cells.

In a single carrier cell system, one cell has one carrier, and the UEonly needs to measure signals on a sole carrier in the serving cell orthe camping cell.

With the development of communications technologies, the concept of anaggregated carrier is proposed in a long term evolution advanced (LongTerm Evolution advanced, LTE-Advanced) system, that is, multiplecarriers are aggregated into a cell and the cell is called aggregatedcarrier cell and provides the UE with a higher speed of service data. Abase station may, according to the capability of the UE and a servicetype, dynamically schedule each component carrier (Component Carrier,CC), and increase or reduce the number of component carriers used by theUE.

For the aggregated carrier cell, a cell has more than one carrier, andeach carrier cannot be measured by using the method in the prior art formeasuring a single carrier cell. Therefore, how to measure componentcarriers in the aggregated carrier cell is an urgent problem to besolved.

SUMMARY OF THE INVENTION

In one respect, the present invention provides a method for measuring anaggregated carrier cell, which includes: obtaining, by a user equipment,measurement configuration information of an aggregated carrier cell,where the measurement configuration information includes signalestimation value information and a corresponding measurement periodthereof; obtaining, by the user equipment, a measurement period of anon-active component carrier according to a signal estimation value ofthe non-active component carrier in the aggregated carrier cell and themeasurement configuration information; and measuring, by the userequipment, the non-active component carrier according to the measurementperiod of the non-active component carrier.

In another respect, the present invention provides a user equipment,which includes: a first obtaining unit, configured to obtain measurementconfiguration information of an aggregated carrier cell, where themeasurement configuration information includes signal estimation valueinformation and a corresponding measurement period thereof; a secondobtaining unit, configured to obtain a measurement period of anon-active component carrier according to a signal estimation value ofthe non-active component carrier in the aggregated carrier cell and themeasurement configuration information; and a measuring unit, configuredto measure the non-active component carrier according to the measurementperiod of the non-active component carrier.

In still another respect, the present invention provides a system formeasuring an aggregated carrier cell, which includes a base station andthe user equipment.

By using the above technical solution, the user equipment can measuredifferent component carriers in an aggregated carrier cell in differentperiods, which avoids power consumption due to excessive measurements.

BRIEF DESCRIPTION OF THE DRAWINGS

To make the technical solution of the present invention clearer, thefollowing briefly describes the accompanying drawings used in thedescription of embodiments. Evidently, the accompanying drawings areexemplary only, and those skilled in the art may derive other drawingsfrom such accompanying drawings without any creative effort.

FIG. 1 is a schematic diagram of a method for measuring an aggregatedcarrier cell according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a method for measuring an aggregatedcarrier cell according to another embodiment of the present invention;

FIG. 3 is a schematic diagram of a method for measuring an aggregatedcarrier cell according to another embodiment of the present invention;

FIG. 4 is a schematic diagram of a method for measuring an aggregatedcarrier cell according to another embodiment of the present invention;

FIG. 5 is a schematic diagram of a method for measuring an aggregatedcarrier cell according to another embodiment of the present invention;

FIG. 6 is a schematic diagram of a method for measuring an aggregatedcarrier cell according to another embodiment of the present invention;

FIG. 6-a is a schematic diagram of a linear relationship in a method formeasuring an aggregated carrier cell according to another embodiment ofthe present invention;

FIG. 6-b is a schematic diagram of a non-linear relationship in a methodfor measuring an aggregated carrier cell according to another embodimentof the present invention;

FIG. 7 is a schematic diagram of a method for measuring an aggregatedcarrier cell according to another embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a user equipment accordingto an embodiment of the present invention; and

FIG. 9 is a schematic structural diagram of a system for measuring anaggregated carrier cell according to an embodiment of the presentinvention.

DETAILED DESCRIPTION OF THE INVENTION

The following describes embodiments of the present invention in detailwith reference to the accompanying drawings.

An embodiment of the present invention provides a method for measuringan aggregated carrier cell. As shown in FIG. 1, the method includes thefollowing steps:

101: A UE obtains measurement configuration information of an aggregatedcarrier cell, where the measurement configuration information includessignal estimation value information and a corresponding measurementperiod thereof.

102: The UE selects a measurement period of a non-active componentcarrier according to a signal estimation value of the non-activecomponent carrier in the aggregated carrier cell and the measurementconfiguration information.

103: The UE measures the non-active component carrier according to themeasurement period of the non-active component carrier.

By using the method for measuring an aggregated carrier cell provided inthis embodiment, the UE measures different component carriers in theaggregated carrier cell in different periods, which avoids powerconsumption due to excessive measurements.

In a specific implementation process, in step 101, the obtaining, by theUE, the measurement configuration information of the aggregated carriercell may include: receiving, by the UE, the measurement configurationinformation sent from a serving base station, or obtaining, by the UE,the measurement configuration information from preset information.

In an implementation manner, the signal estimation value information andthe corresponding measurement period thereof in step 101 may be signalpower (for example, Reference Signal Receiving Power, reference signalreceiving power, RSRP) information and a corresponding measurementperiod thereof. Accordingly, the signal estimation value of thenon-active component carrier in the aggregated carrier cell in step 102may be signal power (for example, RSRP) of the non-active componentcarrier in the aggregated carrier cell. Optionally, the signal powerinformation and the corresponding measurement period thereof in themeasurement configuration information include a signal power range and acorresponding measurement period thereof or a signal power value and acorresponding measurement period thereof

When the signal power information and the corresponding measurementperiod thereof in the above measurement configuration information arethe signal power range and the corresponding measurement period thereof,the UE may select the measurement period of the non-active componentcarrier from the above measurement configuration information accordingto the signal power of the non-active component carrier in theaggregated carrier cell. The above measurement configuration informationmay further include type information or power information of theaggregated carrier cell, or speed information. In this case, the UE mayalso select the measurement period of the non-active component carrierfrom the measurement configuration information according to the typeinformation or power information of the aggregated carrier cell sentfrom a serving base station or according to the current speed of the UE(for example, a current speed value of the UE obtained by the network bycalculation or a current speed value obtained by the UE).

When the signal power information and the corresponding measurementperiod thereof in the above measurement configuration information arethe signal power value and the corresponding measurement period thereof,the UE receives measurement period calculation information sent from theserving base station, and calculates the measurement period of thenon-active component carrier according to the signal power of thenon-active component carrier in the aggregated carrier cell, themeasurement configuration information, and the measurement periodcalculation information. The above measurement configuration informationmay further include type information or power information of theaggregated carrier cell, or speed information. In this case, the UEfirstly selects a corresponding signal power value and a correspondingmeasurement period thereof from the above measurement configurationinformation according to the type information or power information ofthe aggregated carrier cell sent from the serving base station or acurrent speed of the UE (for example, a current speed value of the UEobtained by the network by calculation or a current speed value obtainedby the UE), and then obtains by calculation a measurement period of thenon-active component carrier according to the measurement periodcalculation information, the signal power of the non-active componentcarrier in the aggregated carrier cell, and the selected signal powervalue and the corresponding measurement period thereof.

In step 102, the method for obtaining the signal power of the non-activecomponent carrier in the aggregated carrier cell may include: The UEmeasures the non-active component carrier in the aggregated carriercell, and obtains the signal power of the non-active component carrieror the UE obtains the signal power of the non-active component carrierin the aggregated carrier cell according to signal power of a knowncomponent carrier in the aggregated carrier cell. In addition, thesignal power of the above non-active component carrier may also be amean value of the signal power of the non-active component carrier.

In another implementation manner, the signal estimation valueinformation and the corresponding measurement period thereof in step 101may be signal quality (for example, Reference Signal Receiving Quality,reference signal receiving quality, RSRQ) information and acorresponding measurement period thereof. Accordingly, the signalestimation value of the non-active component carrier in the aggregatedcarrier cell in step 102 may be signal quality (for example, RSRQ) ofthe non-active component carrier in the aggregated carrier cell.Optionally, the signal quality information and the correspondingmeasurement period thereof in the above measurement configurationinformation include a signal quality range and a correspondingmeasurement period thereof or a signal quality value and a correspondingmeasurement period thereof.

When the signal quality information and the corresponding measurementperiod thereof in the above measurement configuration information arethe signal quality range and the corresponding measurement periodthereof, the UE may select a measurement period of the non-activecomponent carrier from the above measurement configuration informationaccording to the signal quality of the non-active component carrier inthe aggregated carrier cell. The above measurement configurationinformation may further include type information or power information ofthe aggregated carrier cell, or speed information. In this case, the UEmay also select a measurement period of the non-active component carrierfrom the measurement configuration information according to the typeinformation or power information of the aggregated carrier cell sentfrom a serving base station or according to the current speed of the UE(for example, a current speed value of the UE obtained by the network bycalculation or a current speed value obtained by the UE).

When the signal quality information and the corresponding measurementperiod thereof in the above measurement configuration information are asignal quality value and a corresponding measurement period thereof, theUE receives measurement period calculation information sent from theserving base station, and calculates a measurement period of thenon-active component carrier according to the signal quality of thenon-active component carrier in the aggregated carrier cell, themeasurement configuration information, and the measurement periodcalculation information. The above measurement configuration informationmay further include type information or power information of theaggregated carrier cell, or speed information. In this case, the UEfirstly selects a signal quality value and a corresponding measurementperiod thereof from the above measurement configuration informationaccording to the type information or power information of the aggregatedcarrier cell sent from the serving base station or a current speed ofthe UE (for example, a current speed value of the UE obtained by thenetwork by calculation or a current speed value obtained by the UE), andthen obtains by calculation a measurement period of the non-activecomponent carrier according to the measurement period calculationinformation, the signal power of the non-active component carrier in theaggregated carrier cell, and the selected signal quality value andcorresponding measurement period thereof.

In step 102, the method for obtaining the signal quality of thenon-active component carrier in the aggregated carrier cell may include:The UE measures the non-active component carrier in the aggregatedcarrier cell, and obtains the signal quality of the non-active componentcarrier or the UE obtains the signal quality of the non-active componentcarrier in the aggregated carrier cell according to signal quality of aknown component carrier in the aggregated carrier cell. In addition, thesignal quality of the above non-active component carrier may also be amean value of the signal quality of the non-active component carrier.

In another implementation manner, the signal estimation valueinformation and the corresponding measurement period thereof in step 101may be path loss information and a corresponding measurement periodthereof. Accordingly, the signal estimation value of the non-activecomponent carrier in the aggregated carrier cell in step 102 is a pathloss of the non-active component carrier in the aggregated carrier cell.

Optionally, the signal path loss information and the correspondingmeasurement period thereof in the above measurement configurationinformation include a signal path loss range and a correspondingmeasurement period thereof or a signal path loss value and acorresponding measurement period thereof.

When the signal path loss information and the corresponding measurementperiod thereof in the above measurement configuration information arethe signal path loss range and the corresponding measurement periodthereof, the UE may select the measurement period of the non-activecomponent carrier from the measurement configuration informationaccording to the signal path loss of the non-active component carrier inthe aggregated carrier cell. The above measurement configurationinformation may further include type information or power information ofthe aggregated carrier cell, or speed information. In this case, the UEmay also select the measurement period of the non-active componentcarrier from the measurement configuration information according to thetype information or power information of the aggregated carrier cellsent from a serving base station or according to the current speed ofthe UE (for example, a current speed value of the UE obtained by thenetwork by calculation or a current speed value obtained by the UE).

When the signal path loss information and the corresponding measurementperiod thereof in the above measurement configuration information are asignal path loss value and a corresponding measurement period thereof,the UE receives measurement period calculation information sent from theserving base station, and calculates a measurement period of thenon-active component carrier according to the signal path loss of thenon-active component carrier in the aggregated carrier cell, themeasurement configuration information, and the measurement periodcalculation information. The above measurement configuration informationmay further include type information or power information of theaggregated carrier cell, or speed information. In this case, the UEfirstly selects a signal path loss value and a corresponding measurementperiod thereof from the above measurement configuration informationaccording to the type information or power information of the aggregatedcarrier cell sent from the serving base station, or a current speed ofthe UE (for example, a current speed value of the UE obtained by thenetwork by calculation or a current speed value obtained by the UE), andthen obtains by calculation a measurement period of the non-activecomponent carrier according to the measurement period calculationinformation, the signal path loss of the non-active component carrier inthe aggregated carrier cell, and the selected signal path loss value andthe corresponding measurement period thereof.

In step 102, the method for obtaining the path loss of the non-activecomponent carrier in the aggregated carrier cell may include: The UEmeasures the non-active component carrier in the aggregated carriercell, and obtains the path loss of the non-active component carrier orthe UE obtains the signal path loss of the non-active component carrierin the aggregated carrier cell according to a signal path loss of aknown component carrier in the aggregated carrier cell. In addition, thesignal path loss of the above non-active component carrier may also be amean value of the signal path loss of the non-active component carrier.

To make those skilled in the art understand the present invention moreclearly, the following describes the implementation manner of thepresent invention based on an example where the signal estimation valueinformation and the corresponding measurement period thereof in themeasurement configuration information are signal power information and acorresponding measurement period thereof.

In each of following embodiments, the signal power is specifically, forexample, the RSRP, and the serving cell of the UE is, for example, anaggregated carrier cell under an evolved NodeB (evolved NodeB, eNB); oneaggregated cell under the eNB includes three component carriers CC1,CC2, and CC3, where CC3 refers to an active component carrier (an activeCC) and CC1 and CC2 refer to non-active component carriers (non-activeCCs).

In the following method embodiments illustrated in FIG. 2 to FIG. 5, theRSRP information and the corresponding measurement period thereofincluded in the measurement configuration information are an RSRP rangeand a corresponding measurement period thereof.

The embodiment of the method for measuring an aggregated carrier cellillustrated in FIG. 2 includes the following steps:

201: A UE receives measurement configuration information sent from aneNB, where the measurement configuration information includes an RSRPrange and a corresponding measurement period thereof. In a specificimplementation process, the eNB may send the above measurementconfiguration information by using a broadcast message or a radioresource control message. The measurement configuration information maybe a measurement configuration table shown by Table 1. The RSRP and thecorresponding measurement period thereof shown in Table 1 are onlyexemplary values, and may be set according to the actual networksituation in the specific implementation process.

TABLE 1 RSRP Measurement Period <−100 dBm 10 s (−100 dBm, −60 dBm) 1s >−60 dBm 100 ms

202: The UE selects measurement periods of CC1 and CC2 from the abovemeasurement configuration information (shown in Table 1) according tothe RSRP of the non-active component carriers CC1 and CC2 in theaggregated carrier cell.

For example, if the RSRP of CC1 and the RSRP of CC2 at T1 are bothsmaller than −100 dBm, the measurement periods that the UE selects forCC1 and CC2 according to Table 1 are 10 s; when the UE moves to thelocation at T2 and the RSRP of CC1 and CC2 is between −100 dBm and −60dBm, the measurement periods that the UE selects for CC1 and CC2according to Table 1 are 1 s. Or, if at T1, the RSRP of CC1 is smallerthan −100 dBm and the RSRP of CC2 is between −100 dBm and −60 dBm, themeasurement period that the UE selects for CC1 according to Table 1 is10 s and the selected measurement period of CC2 is 1 s; when the UEmoves to the location at T2, the RSRP of CC1 is between −100 dBm and −60dBm and the RSRP of CC2 is greater than −60 dBm, the measurement periodthat the UE selects for CC1 according to Table 1 is 1 s and the selectedmeasurement period of CC2 is 100 ms.

203: The UE measures CC1 and CC2 according to the selected measurementperiods.

By using the method for measuring an aggregated carrier cell provided inthis embodiment, the UE measures different component carriers in theaggregated carrier cell in different periods, which avoids powerconsumption due to excessive measurements. Meanwhile, non-activecomponent carriers may be timely activated according to the RSRP.

The embodiment of a method for measuring an aggregated carrier cellillustrated in FIG. 3 includes the following steps:

300: An eNB starts a UE to perform measurement. For example, the UEreceives a measurement instruction sent from the eNB. This step isoptional.

301: The UE obtains measurement configuration information from presetinformation, where the measurement configuration information includes anRSRP range and a corresponding measurement period thereof.

In this embodiment, the measurement configuration information may bepreset by a manufacturer of the UE. For example, the information may bepreset in an external storage device of the UE (for example, a usercard) or in the information stored on the UE, so that the UE is capableof obtaining the measurement configuration information from the usercard or from the preset information stored on the UE. Optionally, whenan operator needs to update or optimize the measurement configurationtable, upgrading may be performed by using UE software.

In a specific implementation process, the above measurementconfiguration information may be a measurement configuration table shownby Table 2. The RSRP and the corresponding measurement period thereofshown in Table 2 are only exemplary values, and may be set according tothe actual network situation in the specific implementation process.

TABLE 2 RSRP Measurement Period <−100 dBm 10 s (−100 dBm, −60 dBm) 2s >−60 dBm 500 ms

302: The UE selects measurement periods of CC1 and CC2 from the abovemeasurement configuration information (shown in Table 2) according tothe RSRP of the non-active component carriers CC1 and CC2 in theaggregated carrier cell.

For example, if the RSRP of CC1 and CC2 at T1 is smaller than −100 dBm,the measurement periods that the UE selects for CC1 and CC2 according toTable 2 are 10 s; when the UE moves to the location at T2, the RSRP ofCC1 and CC2 is between −100 dBm and −60 dBm, and the measurement periodsthat the UE selects for CC1 and CC2 according to Table 2 are 2 s. Or, ifat T1, the RSRP of CC1 is smaller than −100 dBm and the RSRP of CC2 isbetween −100 dBm and −60 dBm, the measurement period that the UE selectsfor CC1 according to Table 2 is 10 s and the selected measurement periodof CC2 is 2 s; when the UE moves to the location at T2, the RSRP of CC1is between −100 dBm and −60 dBm and the RSRP of CC2 is greater than −60dBm, the measurement period that the UE selects for CC1 according toTable 2 is 2 s and the selected measurement period of CC2 is 500 ms.

303: The UE measures CC1 and CC2 according to the selected measurementperiods.

By using the method for measuring an aggregated carrier cell provided inthis embodiment, the UE measures different component carriers in theaggregated carrier cell in different periods, which avoids powerconsumption due to excessive measurements. Meanwhile, non-activecomponent carriers may be timely activated according to the RSRP.

The embodiment of a method for measuring an aggregated carrier cellillustrated in FIG. 4 includes the following steps:

401: A UE receives measurement configuration information sent from aneNB, for example, the UE receives the measurement configurationinformation that the eNB sends to the UE by using a broadcast message ora radio resource control message; or the UE obtains the measurementconfiguration information from preset information. The above measurementconfiguration information includes an RSRP range and a correspondingmeasurement period thereof, and further includes type information orpower information of the aggregated carrier cell.

The type information of the above aggregated carrier cell indicates thetype of the aggregated carrier cell, for example, pico cell (Pico cell),macro cell (Macro cell), or femto cell (Femto cell). Generally, thepower of a cell may also indicate the type of the cell. For example, ifthe cell power is 40 W, the cell is generally considered to be a Macrocell; if the cell power is 1 W, the cell is generally considered to be aPico cell.

In a specific implementation process, the above measurementconfiguration information may be measurement configuration tables shownby Table 3-1 and Table 3-2 that are differentiated by the type or powerof the cell or be a measurement configuration table shown by Table 4.The RSRP and corresponding measurement periods thereof shown in Table3-1, Table 3-2, and Table 4 are only exemplary values, and may be setaccording to the actual network situation in the specific implementationprocess.

TABLE 3-1 Macro cell (or the cell transmission power is 40 W)Measurement RSRP Period <−100 dBm  10 s (−100 dBm, −60 dBm)  1 s  >−60dBm 100 ms

TABLE 3-2 Pico cell (or the cell transmission power is 1 W) MeasurementRSRP Period <−84 dBm  10 s (−84 dBm, −44 dBm)  1 s >−44 dBm 100 ms

TABLE 4 Cell Type Measurement (or Power) RSRP Period Pico (or 1 W)  <−84dBm  10 s Pico (or 1 W) (−84 dBm, −44 dBm)  1 s Pico (or 1 W)  >−44 dBm100 ms . . . . . . . . . Macro (or 40 W) <−100 dBm  10 s Macro (or 40 W)(−100 dBm, −60 dBm)  1 s Macro (or 40 W)  >−60 dBm 100 ms

Step 402: The UE receives type information or power information of theaggregated carrier cell sent from the eNB. In a specific implementationprocess, the eNB may send the type information or power information ofthe aggregated carrier cell to the UE by using a broadcast message or aradio resource control message.

Step 403: The UE selects the measurement periods of CC1 and CC2according to the above received type information or power information ofthe aggregated carrier cell and the RSRP of the non-active componentcarriers CC1 and CC2 in the aggregated carrier cell, and the abovemeasurement configuration information (as shown in Table 3-1 and Table3-2, or Table 4).

For example, if the type information of the aggregated carrier cell thatthe UE receives from the eNB is Pico and the RSRP of CC1 and the RSRP ofCC2 at T1 are both smaller than −84 dBm, the measurement periods thatthe UE selects for CC1 and CC2 according to Table 3-2 or Table 4 are 10s; when the UE moves to the location at T2 and the RSRP of CC1 and CC2is between −84 dBm and −44 dBm, the measurement periods that the UEselects for CC1 and CC2 according to Table 3-2 or Table 4 are 1 s. Or,if the power of the aggregated carrier cell that the UE receives fromthe eNB is 40 W, and at T1 the RSRP of CC1 is smaller than −100 dBm andthe RSRP of CC2 is between −100 dBm and −60 dBm, so that the measurementperiod that the UE selects for CC1 according to Table 3-1 or Table 4 is10 s and the selected measurement period of CC2 is 1 s; when the UEmoves to the location at T2, the RSRP of CC1 is between −100 dBm and −60dBm and the RSRP of CC2 is greater than −60 dBm, the measurement periodthat the UE selects for CC1 according to Table 3-1 or Table 4 is 1 s andthe selected measurement period of CC2 is 100 ms.

404: The UE measures CC1 and CC2 according to the foregoing selectedmeasurement periods.

By using the method for measuring an aggregated carrier cell provided inthis embodiment, the UE measures different component carriers in theaggregated carrier cell in different periods, which avoids powerconsumption due to excessive measurements. Meanwhile, non-activecomponent carriers may be timely activated according to the RSRP.

The embodiment of a method for measuring an aggregated carrier cellillustrated in FIG. 5 includes the following steps:

501: A UE receives measurement configuration information sent from aneNB, for example, the UE receives the measurement configurationinformation that the eNB sends to the UE through a broadcast message ora radio resource control message or obtains measurement configurationinformation from preset information, where the measurement configurationinformation includes an RSRP range and a corresponding measurementperiod thereof and further includes speed information.

In a specific implementation process, the above measurementconfiguration information may be measurement configuration tables shownby Table 5-1, Table 5-2, and Table 5-3 that are differentiated by thespeed information of the UE or may be a measurement configuration tableshown by Table 6. The RSRP and corresponding measurement periods thereofshown in Table 5-1, Table 5-2, Table 5-3, and Table 6 are only exemplaryvalues, and may be set according to the actual network situation in thespecific implementation process.

TABLE 5-1 UE speed < 5 km/h RSRP Measurement Period <−84 dBm  20 s (−84dBm, −44 dBm)  5 s >−44 dBm 100 ms

TABLE 5-2 5 km/h < UE speed < 30 km/h RSRP Measurement Period <−100 dBm 10 s (−100 dBm, −60 dBm)  2 s  >−60 dBm 100 ms

TABLE 5-3 UE speed > 30 km/h RSRP Measurement Period <−110 dBm  5 s(−110 dBm, −70 dBm)  1 s  >−70 dBm 100 ms

TABLE 6 UE Speed RSRP Measurement Period <5 km/h  <− 84 dBm  20 s <5km/h (−84 dBm, −44 dBm)  5 s <5 km/h  >−44 dBm 100 ms . . . . . . . . .(5 km/h, 30 km/h) <−100 dBm  10 s (5 km/h, 30 km/h) (−100 dBm, −60 dBm) 2 s (5 km/h, 30 km/h)  >−60 dBm 100 ms . . . . . . . . . >30 km/h <−110dBm  5 s >30 km/h (−110 dBm, −70 dBm)  1 s >30 km/h  >−70 dBm 100 ms

502: The UE selects measurement periods of CC1 and CC2 according to thecurrent speed of the UE (for example, a current speed value of the UEobtained by the network by calculation or a current speed value obtainedby the UE), the RSRP of the non-active component carriers CC1 and CC2 inthe aggregated carrier cell, and the above measurement configurationinformation (for example, Table 5-1, Table 5-2, and Table 5-3, or Table6).

For example, if the UE in low-speed movement is at a speed smaller than5 km/h at T1 and the RSRP of CC1 and the RSRP of CC2 are both smallerthan −84 dBm, the measurement periods that the UE selects for CC1 andCC2 according to Table 5-1 or Table 6 are 20 s; when the UE moves to alocation at T2, if the UE in medium-speed movement is at a speed largerthan 5 km/h and smaller than 30 km/h and the RSRP of CC1 and CC2 isbetween −100 dBm and −70 dBm, the measurement periods that the UEselects for CC1 and CC2 according to Table 5-2 or Table 6 are 2 s. Or,at T1, if the UE in low-speed movement is at a speed smaller than 5km/h, the RSRP of CC1 is smaller than −84 dBm and the RSRP of CC2 isbetween −84 dBm and −44 dBm, the measurement period that the UE selectsfor CC1 according to Table 5-1 or Table 6 is 20 s and the selectedmeasurement period of CC2 is 5 s; when the UE moves to the location atT2, if the UE in high-speed movement is at a speed greater than 30 km/h,the RSRP of CC1 is between −110 dBm and −70 dBm and the RSRP of CC2 isgreater than −70 dBm, the measurement period that the UE selects for CC1according to Table 5-3 or Table 6 is 1 s and the selected measurementperiod of CC2 is 100 ms.

503: The UE measures CC1 and CC2 according to the selected measurementperiods.

By using the method for measuring an aggregated carrier cell provided inthis embodiment, the UE measures different component carriers in theaggregated carrier cell in different periods, which avoids powerconsumption due to excessive measurements. Meanwhile, non-activecomponent carriers may be timely activated according to the RSRP.

The following embodiments of the method are different from the methodembodiments illustrated in FIG. 2 to FIG. 5 in that: The RSRPinformation and the corresponding measurement period thereof included inthe measurement configuration information are an RSRP value and acorresponding measurement period thereof.

As shown in FIG. 6, a method for measuring an aggregated carrier cellprovided in an embodiment includes the following steps:

601: A UE receives measurement configuration information sent from aneNB, or obtains measurement configuration information from presetinformation, where the measurement configuration information includes anRSRP value and a corresponding measurement period thereof.

In a specific implementation process, the eNB may send the abovemeasurement configuration information through a broadcast message or aradio resource control message; or the above measurement configurationinformation may be preset by a manufacturer of the UE, for example, theinformation is preset in an external storage device of the UE (forexample, a user card) or preset in information stored on the UE. The UEmay obtain the above measurement configuration information from the usercard or the preset information stored on the UE. Optionally, when anoperator needs to update or optimize the measurement configurationtable, upgrading may be performed by using UE software.

The above measurement configuration information may be a measurementconfiguration table shown by Table 7. The RSRP value and thecorresponding measurement period thereof shown in Table 7 are onlyexemplary values, and may be set according to the actual networksituation in the specific implementation process.

TABLE 7 RSRP Measurement Period −70 dBm  10 s −44 dBm 100 ms

Optionally, Table 7 may further include a measurement period upper limitvalue (for example, 20 s) and a corresponding minimum RSRP threshold, ameasurement period lower limit value (for example, 10 ms) and acorresponding maximum RSRP threshold. When the RSRP of CC1 or CC2 issmaller than the minimum RSRP threshold, the measurement period upperlimit value is used in the measurement; when the RSRP of CC1 or CC2 isgreater than the maximum RSRP threshold, the measurement period lowerlimit value is used in the measurement.

602: The UE receives measurement period calculation information sentfrom the eNB.

603: The UE calculates the measurement periods of CC1 and CC2 accordingto the RSRP of the non-active component carriers CC1 and CC2 in theaggregated carrier cell, the measurement period calculation information,and the measurement configuration information (as shown in Table 7).

For example, when the measurement period calculation information is alinear difference calculation rule, according to Table 7 and the linearrelationship shown in FIG. 6-a, the RSRP of a point A is Xa=−70 dBm andthe corresponding measurement period is Ya=10 s; the RSRP of a point Bis Xb=−44 dBm and the corresponding measurement period is Yb=100 ms; theRSRP of CC1 is Xcc1, and the RSRP of CC2 is Xcc2. The measurement periodof CC1 may be calculated as follows according to the linearrelationship:

Ycc1=Yb−(Yb−Ya)*(Xcc1−Xa)/(Xb−Xa);

The measurement period of the CC2 is as follows:

Ycc2=Yb−(Yb−Ya)*(Xcc2−Xa)/(Xb−Xa).

In another example, when the measurement period calculation informationthat the eNB sends to the UE is a non-linear (for example, a paraboliccurve) calculation rule shown in FIG. 6-b and a measurement periodcalculation parameter γ (for example, −0.1), according to above Table 7and FIG. 6-b, the RSRP of a point A is Xa=−70 dBm and the correspondingmeasurement period is Ya=10 s; the RSRP of CC1 is Xcc1, and the RSRP ofCC2 is Xcc2. The measurement periods Ycc1 and Ycc2 of CC1 and CC2 may becalculated according to the following formulas:

(Xcc1−Xa)=γ(Ycc1−Ya)²;

(Xcc2−Xa)=γ(Ycc2−Ya)².

Besides the measurement period calculation information and thecorresponding calculation methods in the above two examples, thoseskilled in the art may also calculate the measurement periods of CC1 andCC2 by using other calculation methods, for example, by using the cubitdifference. In addition, in this embodiment, multiple ranges may bedivided according to multiple RSRP values, the measurement period may becalculated in each range according to the measurement period calculationinformation.

604: The UE measures CC1 and CC2 according to the calculated measurementperiods.

By using the method for measuring an aggregated carrier cell provided inthis embodiment, the UE measures different component carriers in theaggregated carrier cell in different periods, which avoids powerconsumption due to excessive measurements. Meanwhile, non-activecomponent carriers may be timely activated according to the RSRP.

As shown in FIG. 7, a method for measuring an aggregated carrier cellprovided in an embodiment includes the following steps:

701: A UE receives measurement configuration information sent from aneNB or the UE obtains measurement configuration information from presetinformation, where the measurement configuration information includes anRSRP value and a corresponding measurement period thereof, and furtherincludes type information or power information of an aggregated carriercell, or further includes speed information.

In a specific implementation process, the eNB may send the abovemeasurement configuration information through a broadcast message or aradio resource control message; or the above measurement configurationinformation may be preset by a manufacturer of the UE, for example,preset in an external storage device of the UE (for example, a usercard) or preset in information stored by the UE. The UE may obtain themeasurement configuration information from the user card or the presetinformation stored by the UE. Optionally, when an operator needs toupdate or optimize the measurement configuration table, upgrading may beperformed by using UE software.

The above measurement configuration information that includes the typeinformation or power information of the aggregated carrier cell may bemeasurement configuration tables shown by Table 8-1 and Table 8-2 or ameasurement configuration table shown by Table 9. The above measurementconfiguration information including the speed information may bemeasurement configuration tables shown by Table 10-1, Table 10-2, andTable 10-3 or a measurement configuration table shown by Table 11. TheRSRP values and corresponding measurement periods thereof shown in Table8-1, Table 8-2, Table 9, Table 10-1, Table 10-2, Table 10-3, and Table11 are only exemplary values, and may be set according to the actualnetwork situation in the specific implementation process.

TABLE 8-1 Macro cell (or the cell transmission power is 40 W) RSRPMeasurement Period −100 dBm  10 s  −60 dBm 100 ms

TABLE 8-2 Pico cell (or the cell transmission power is 1 W) RSRPMeasurement Period −84 dBm  10 s −44 dBm 100 ms

TABLE 9 Cell Type (or Power) RSRP Measurement Period Pico (or 1 W)  −84dBm  10 s Pico (or 1 W)  −44 dBm 100 ms . . . . . . . . . Macro (or 40W) −100 dBm  10 s Macro (or 40 W)  −60 dBm 100 ms

TABLE 10-1 UE speed < 5 km/h RSRP Measurement Period −70 dBm  10 s −44dBm 100 ms

TABLE 10-2 5 km/h < UE speed < 30 km/h RSRP Measurement Period −90 dBm 10 s −60 dBm 100 ms

TABLE 10-3 UE speed > 30 km/h RSRP Measurement Period −110 dBm  10 s −80 dBm 100 ms

TABLE 11 UE Speed RSRP Measurement Period  <5 km/h  −70 dBm  10 s  <5km/h  −44 dBm 100 ms . . . . . . . . . (5 km/h, 30 km/h)  −90 dBm  10 s(5 km/h, 30 km/h)  −60 dBm 100 ms . . . . . . . . . >30 km/h −110 dBm 10 s >30 km/h  −80 dBm 100 ms

Optionally, Table 8-1, Table 8-2, Table 9, Table 10-1, Table 10-2, Table10-3, and Table 11 may further include a measurement period upper limitvalue (for example, 20 s) and a corresponding minimum RSRP threshold, ameasurement period lower limit value (for example, 10 ms) and acorresponding maximum RSRP threshold. When the RSRP of CC1 or CC2 issmaller than the minimum RSRP threshold, the measurement period upperlimit value is used in the measurement; when the RSRP of CC1 or CC2 isgreater than the maximum RSRP threshold, the measurement period lowerlimit value is used in the measurement.

702: The UE receives type information or power information of theaggregated carrier cell sent from a serving base station, or selects acorresponding RSRP value and a measurement period corresponding to theRSRP value according to the current speed of the UE (for example, acurrent speed value obtained by the network by calculation or currentspeed value obtained by the UE).

For example, if the type information of the aggregated carrier cell thatthe UE receives from the eNB is Macro cell or the power information is40 W, the UE selects the RSRP value and the corresponding measurementperiod thereof shown in Table 8-1, or selects the RSRP value and thecorresponding measurement period thereof that correspond to the Macrocell or power information of 40 W. If the current speed of the UE is 20km/h, the UE selects the RSRP value and the corresponding measurementperiod thereof shown in Table 10-2, or selects the RSRP value and thecorresponding measurement period thereof corresponding to (5 km/h, 30km/h) and shown in Table 11.

703: The UE receives measurement period calculation information sentfrom the eNB. 703 and 702 may be performed in any sequence.

704: The UE calculates the measurement periods of the non-activecomponent carriers CC1 and CC2 according to the RSRP of the non-activecomponent carriers CC1 and CC2 in the aggregated carrier cell, the aboveselected RSRP value and the corresponding measurement period thereof,and the above measurement period calculation information. The specificcalculation method may be referred to the specific content in 603 in theabove embodiment, and is not further described.

705: The UE measures CC1 and CC2 according to the foregoing calculatedmeasurement periods.

By using the method for measuring an aggregated carrier cell provided inthis embodiment, the UE measures different component carriers in theaggregated carrier cell in different periods, which avoids powerconsumption due to excessive measurements. Meanwhile, non-activecomponent carriers may be timely activated according to the RSRP.

In the above embodiment, the method for obtaining the RSRP of thenon-active component carriers CC1 and CC2 may include: measuring thenon-active component carriers CC1 and CC2 in the aggregated carriercell, and obtaining the RSRP of CC1 and CC2; or calculating the RSRP ofthe above non-active component carriers according to the RSRP of a knownactive component carrier or non-active component carrier. For example,the RSRP of the non-active component carriers CC1 and CC2 are calculatedaccording to the RSRP of the active component carrier; or the RSRP ofthe non-active component carrier CC1 is given, and the RSRP of CC2 iscalculated according to the RSRP of CC1. For example, if the RSRP of CC2and the RSRP of CC1 that the UE at a geographic location at T1calculates according to the RSRP of CC3 are both smaller than −100 dBm,the measurement periods that the UE selects for CC1 and CC2 are 10 saccording to Table 1. If the RSRP of CC2 that the UE at a geographiclocation at T2 calculates according to the RSRP of CC3 is between −60dBm and −100 dBm and the RSRP of CC1 is smaller than −100 dBm, accordingto Table 1, the measurement period that the UE selects for CC1 is 1 sand the measurement period of CC1 is 10 s.

Specifically, the principle for calculating the RSRP of other CCs in theaggregated carrier cell according to the known RSRP of a CC is asfollows: the transmit power of CC1, CC2, and CC3 is different, and RSRPis attenuated in concentric circles going outwards, which results indifferent RSRP of CC1, CC2, and CC3 reaching the UE, but a differenceexists between the CCs. Therefore, the RSRP of other CCs may be obtainedby calculation according to the RSRP of the known CC and the difference.Specifically, in the case where each component carrier is located at asame frequency band, the difference between the RSRP of the componentcarriers is statistically fixed. Therefore, the RSRP of other componentcarriers can be calculated according to the RSRP of the known componentcarrier and the fixed difference. In the case where the componentcarriers are located at different frequency bands, although thedifference between the RSRP of the component carrier is notstatistically fixed, calculation may also be performed. For example, TheUE reports the actually measured RSRP, the network (for example, theeNB) forms an actual difference between the RSRP of CCs according to thedata reported constantly by the UE, and then the network sends theactual difference to the UE, so that the UE is capable of calculatingthe RSRP of other CCs according to the RSRP of the known CC and theactual difference; or a fixed difference between CCs may be configuredduring system configuration, for example, a difference betweendifference CCs in the aggregated carrier cell is set according to theactually measured data during the system configuration, so that the UEis capable of calculating the RSRP of other CCs according to the RSRP ofthe known CC and the difference configured in the system. In the mannerof calculating the RSRP of non-active component carriers by using theknown component carrier, the following configuration information may beconfigured: when the RSRP value of a non-active component carrier issmaller than a threshold, the measurement period of the non-activecomponent carrier is +∞, that is, no measurement is performed.

The above embodiments of the method shown in FIG. 2 to FIG. 7 aredescribed based on only the fact that the signal estimation valueinformation in the measurement configuration information is the RSRPinformation. When the signal estimation value information in themeasurement configuration information is signal quality information (forexample, RSRQ) or signal path loss information, the implementationmanner is similar to the above embodiments, for example, the signalpower shown in Table 1 to Table 11 may be replaced with the signalquality (for example, RSRQ) or the signal path loss, and the values andmeasurement periods may also be replaced accordingly. Details are notfurther described.

An embodiment of the present invention provides a user equipment 80,which, as shown in FIG. 8, includes: a first obtaining unit 801, asecond obtaining unit 802, and a measuring unit 803. The first obtainingunit 801 obtains measurement configuration information of an aggregatedcarrier cell, where the measurement configuration information includessignal estimation value information and a corresponding measurementperiod thereof. The second obtaining unit 802 obtains a measurementperiod of a non-active component carrier according to a signalestimation value of the non-active component carrier in the aggregatedcarrier cell and the measurement configuration information. Themeasuring unit 803 measures the non-active component carrier accordingto the above measurement period.

The above first obtaining unit 801 is further configured to receive theabove measurement configuration information sent from a serving basestation, or obtain the measurement configuration information from presetinformation of the user equipment 80.

Further, the signal estimation value information and the correspondingmeasurement period thereof in the measurement configuration informationobtained by the first obtaining unit 801 includes a signal estimationvalue range and a corresponding measurement period thereof. The secondobtaining unit 802 is further configured to select a measurement periodof the non-active component carrier from the above measurementconfiguration information according to a signal estimation value of thenon-active component carrier in the aggregated carrier cell. If themeasurement configuration information obtained by the first obtainingunit 801 further includes type information or power information of theaggregated carrier cell, the second obtaining unit 802 selects themeasurement period of the non-active component carrier from the abovemeasurement configuration information according to the type informationor power information of the aggregated carrier cell received from aserving base station and the signal estimation value of the non-activecomponent carrier in the aggregated carrier cell. If the measurementconfiguration information obtained by the first obtaining unit furtherincludes speed information, the second obtaining unit 802 selects ameasurement period of the non-active component carrier according to acurrent speed of the user equipment 80 (for example, a current speedvalue of the UE obtained by the network by calculation or a currentspeed value obtained by the UE) and the signal estimation value of thenon-active component carrier in the aggregated carrier cell.

Further, the signal estimation value information and the correspondingmeasurement period thereof in the measurement configuration informationobtained by the first obtaining unit 801 includes a signal estimationvalue and a corresponding measurement period thereof. The user equipment80 further includes a receiving unit 804 configured to receivemeasurement period calculation information sent from a serving basestation. The second obtaining unit 802 obtains by calculation ameasurement period of the non-active component carrier according to thesignal estimation value of the non-active component carrier in theaggregated carrier cell, the signal estimation value and thecorresponding measurement period thereof, and the measurement periodcalculation information received by the receiving unit 804. If themeasurement configuration information obtained by the first obtainingunit 801 further includes type information or power information of theaggregated carrier cell, the second obtaining unit 802 selects a signalestimation value and a corresponding measurement period thereof from theabove measurement configuration information according to the typeinformation or power information of the aggregated carrier cell receivedfrom the serving base station, and obtains by calculation a measurementperiod of the non-active component carrier according to the signalestimation value of the non-active component carrier in the aggregatedcarrier cell, the selected signal estimation value and the correspondingmeasurement period thereof, and the measurement period calculationinformation received by the receiving unit 804. If the measurementconfiguration information obtained by the first obtaining unit 801further includes speed information, the second obtaining unit 802selects a signal estimation value and a corresponding measurement periodthereof from the measurement configuration information according to thecurrent speed of the user equipment (for example, a current speed valueof the UE obtained by the network by calculation or a current speedvalue obtained by the UE), and obtains by calculation the measurementperiod of the non-active component carrier according to the signalestimation value of the non-active component carrier in the aggregatedcarrier cell, the selected signal estimation value and the correspondingmeasurement period thereof, and the measurement period calculationinformation received by the receiving unit 804.

In a specific implementation process, the above signal estimation valueinformation and the corresponding measurement period thereof may besignal power (for example, RSRP) information and a correspondingmeasurement period thereof. Accordingly, the signal estimation value ofthe non-active component carrier in the aggregated carrier cell issignal power (for example, RSRP) of the non-active component carrier inthe aggregated carrier cell; or the signal estimation value informationand the corresponding measurement period thereof may also be signalquality information and a corresponding measurement period thereof.Accordingly, the signal estimation value of the non-active componentcarrier in the aggregated carrier cell is signal quality of thenon-active component carrier in the aggregated carrier cell; or thesignal estimation value information and the corresponding measurementperiod thereof may also be signal path loss information and acorresponding measurement period thereof. Accordingly, the signalestimation value of the non-active component carrier in the aggregatedcarrier cell is a signal path loss of the non-active component carrierin the aggregated carrier cell.

The second obtaining unit 802 is further configured to: measure anon-active component carrier in the aggregated carrier cell, and obtaina signal estimation value of the non-active component carrier or obtaina signal estimation value of the non-active component carrier in theaggregated carrier cell according to the signal estimation value of aknown component carrier in the aggregated carrier cell. Optionally, thesignal estimation value of the non-active component carrier may be amean value of the signal estimation value of the non-active componentcarrier.

As shown in FIG. 9, an embodiment of the present invention furtherprovides a system for measuring an aggregated carrier cell, including abase station 90 and the user equipment 80 shown in FIG. 8.

To make the description easy and neat, specific working procedures ofthe system and user equipment provided in this embodiment may bereferred to corresponding processes in the methods provided in theforegoing embodiments, and are not further described.

By using the user equipment and the system for measuring an aggregatedcarrier cell provided in this embodiment, the UE measures differentcomponent carriers in the aggregated carrier cell in different periods,which avoids power consumption due to excessive measurements. Meanwhile,non-active component carriers may be timely activated according to thesignal estimation value.

In several embodiments of the present invention, the system, apparatus,and method of the present invention may be implemented through othermodes. For example, the above apparatus is only for illustration. Forexample, the division of the unit is only performed according to thelogical function. In the actual implementation, other division modes maybe available, for example, multiple units or components may be combinedor integrated in a system, or some features may be ignored or not beexecuted.

In addition, each of the function units in embodiments of the presentinvention may be integrated into a processing unit, or existsindependently, or two ore more units are integrated into a unit. Theintegrated unit may be embodied in the form of hardware or a softwarefunction unit.

If the integrated unit is embodied in the form of a software functionunit and is sold or used as a separate product, the integrated unit maybe stored in a computer readable storage medium. Based on suchunderstanding, the essence of the technical solution under the presentinvention or the contributions to the prior art may be embodied as asoftware product. The software product is stored in a storage medium,and includes several instructions that enable a computer device (a PC, aserver or a network device) to perform all or part of the steps of themethods provided in the embodiments of the present invention. Thestorage medium includes various media capable of storing program code,such as a U disk, a portable hard disk, a read-only memory (ROM,Read-Only Memory), a random access memory (RAM, Random Access Memory), amagnetic disk, or a compact disc-read only memory.

The above descriptions are merely exemplary embodiments of the presentinvention, but not intended to limit the scope of the present invention.Any modification, equivalent replacement, or improvement made withoutdeparting from the principle of the present invention should fall withinthe scope of the present invention. Therefore, the scope of the presentinvention is subject to the appended claims.

What is claimed is:
 1. A method for measuring an aggregated carriercell, comprising: receiving, by a user equipment, measurementconfiguration information of an aggregated carrier cell from a servingbase station, wherein the measurement configuration informationcomprises signal estimation value information and a correspondingmeasurement period thereof; obtaining, by the user equipment, ameasurement period of the non-active component carrier according to asignal estimation value of a non-active component carrier in theaggregated carrier cell and the measurement configuration information;and measuring, by the user equipment, the non-active component carrieraccording to the measurement period of the non-active component carrier.2. The method according to claim 1, wherein the signal estimation valueinformation and the corresponding measurement period thereof in themeasurement configuration information comprise a signal estimation valuerange and a corresponding measurement period thereof.
 3. A userequipment, comprising: a first obtaining unit, configured to receivemeasurement configuration information of an aggregated carrier cell froma serving base station, wherein the measurement configurationinformation comprises signal estimation value information and acorresponding measurement period thereof; a second obtaining unit,configured to obtain a measurement period of a non-active componentcarrier according to a signal estimation value of the non-activecomponent carrier in the aggregated carrier cell and the measurementconfiguration information; and a measuring unit, configured to measurethe non-active component carrier according to the measurement period ofthe non-active component carrier.
 4. The user equipment according toclaim 3, wherein the signal estimation value information and thecorresponding measurement period thereof in the measurementconfiguration information obtained by the first obtaining unit comprisea signal estimation value range and a corresponding measurement periodthereof.
 5. A base station, comprising: a processer, configured toconfigure measurement configuration information of an aggregated carriercell, wherein the measurement configuration information comprises signalestimation value information and a corresponding measurement periodthereof; and a transmitter, configured to send the measurementconfiguration information of the aggregated carrier cell to a userequipment; wherein the measurement configuration information of theaggregated carrier cell is used by the user equipment to obtain ameasurement period of a non-active component carrier and measure thenon-active component carrier according to the measurement period of thenon-active component carrier.
 6. The base station according to claim 5,wherein the signal estimation value information and the correspondingmeasurement period thereof in the measurement configuration informationcomprise a signal estimation value range and a corresponding measurementperiod thereof.
 7. A system for measuring an aggregated carrier cell,comprising a base station and the user equipment according to claim 3.8. The system according to claim 7, wherein the signal estimation valueinformation and the corresponding measurement period thereof in themeasurement configuration information obtained by the first obtainingunit comprise a signal estimation value range and a correspondingmeasurement period thereof.
 9. The system according to claim 7, whereinthe base station, comprises: a processer, configured to configuremeasurement configuration information of an aggregated carrier cell,wherein the measurement configuration information comprises signalestimation value information and a corresponding measurement periodthereof; and a transmitter, configured to send the measurementconfiguration information of the aggregated carrier cell to a userequipment.